Radiator



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IIII I INVENTOR. EW/.f HENETT BQWWI wa, 2

III II ATTORNEYS.

IIIIIIIIIIIIIII IIIIIIIIIIIIIII IIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIII I HIF IIIIII IIIIIIIIIIIIII IIIII III fRADIATOR l IIIIIIIIIIIIII rf-u il/ L. D. HARNETT Filed Aug. 30, 1926 IIIFIG-2 LLL ULL

IIIIIIIIIIIIIIIIII III IIIIII IIII yLLL I IIIIIIIIIIIII rrrr r LLrIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIII III I I I I I II I June 28. 1927- menad June 28, 1927.

UNITED sTATEs PATENT .on-"ica LEWIS D. BARNEN, 01' COLUMBUS, OHIO,ASSIGN'OB TO THE I BUCKEYE BLOWIB .GOI- PL'N'Y, 01' COLUMBUS, OHIO, ACORPORATION 01' QHIO.

MDIATOB..

Application fled Aufllt 80, 1028. Serial No. 183,435.

My invention relates to radiators.

It is the object ofv my invention to provide a very light and verystrong which will have the maximum radiating surface, which ma beassembled from stampings and seam ess drawn co per tubing, which may bemade out of nonerrousmaterial and can be so arranged that freezing ofthe radiator will not destroy it.

My radiator is particularly adaptable heating and ventilating unitsemployed in buildings, such as schools, churches, hospitals,-and thelike.

In the accompanying drawings:

Figure 1 is a plan view of my assembled radiator;

Figure 2 is a side elevation of one of the spacing plates;

Figure 3 is a plan view thereof;

Figure 4 is an end elevation thereof;

Figure 5 is an end elevation of the header plate;

Figure 6 is a section on the line 6-6 of Figure 5, showing the method ofinstallmg the tubes in the header plate;

Figure 7 is a section on the line 7-7 of Figure 5.

Referring to the drawings in detail, 1 and 2 are the headers, whicli maybe of drawn stock, preferably of non-ferrous material.

Each one of these cup-Shaped headers is provided with a header plate onthe' face tliereof designated 2, such plates having a plurality ofopenings, generally rectangular in shape, designated 3, and providedwith rounded ends. These openings are substantially the same shape asthe pipes 4.

The pipes 4.- are expanded as at 5 to the size of the openings 3 andhave their margins 6 engaging with the margins 7 of the openings towhich they are welded by the welding material 8. The reason vfor havingthese openings and pipe ends larger than the main body'of the pipes isthat there is 3 are staggered so that the radiator,

no restriction of the flow through the pipes hthe While the headerplates are preferably of' brass. These radiating plates 9 have aplurality of struck-up tubular flanges 10 engaging with the side wallsof the tubes 4. The ends of these plates 9 are formed into spacing anglepieces 11, which abut a ainst g one another to maintain them in space Irelationship of approximately one-quarter of an inch apart. Tlius, theheat is conveyed from the pipes through these lates 9 by conduction, andconveyed by t e air passing over the plates by convection.

It will be seen that, due to the extremely light weight of the materialem loyed, the radiators are very light, but, ue to the structuralcharacteristics, the tubes are thoroughly protected and the structureisvery strong.

A large radiating surface is rovided, thus enabling a small radiator toBe utilized.

In the event that the attendant of the building in extremely coldweather neglects to close the intake opening and the radiator freezes, Ifind that the utilization of pipes having a narrow width andarelativelygreat depth permits of expansion of the ipes laterally to take care offreezing con itions, so

that it is practically impossible to burst It will be understood that Idesire to compreliend within my invention such modifica-' tions as maybe necessary to adapt it to varying conditions and uses.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

In combination, headers, a plurality of pipe members connected to saidheaders having fiat sides and rounded ends, the distance between said,sides being materially less than the distance between said ends, andSpaced from one another by broad hearing a series of plates havingsleeves thereon surfaces engaging the rear sides of each adapted to fitover said pipes, and means on plate. 10 the ends of said plates formedat right angles In testimony whereof, I afix my signa- 5 thereto havinginwardly turned ends, said ture.

ends engaging With the rear surface of the next ad1acent plate Wherebysaid plates are LEWIS D. HARNETT.

